Improvement in lamps



J. B. FULLER.

Lamp.

Patented May 24. 1870.

N.PETERS PHOT HER. WASHINGTON. D C- 4 and exam Letters Patent No. 103,442, dated May 24, 1870.

IMPROVEMENT m LAMPS;

The scheme referred to in these Letters Patent and making part of the lame Be it known that I, JIM B. FULLER, of Norwich,

iuthe county of New London and State oi Connecticut, have invented a new and useful Improvement in Metallic Lamps, of which the following is a'speeification,referenoe being had to the annexed drawing, in which- Figui-el is a vertical section, and

Figure 2 is a plan view of my improvement. "Figures 3 and 4' are detached sections, hereinafter described-.

The first part of my invention relates to the peculiar fond of the body of the lamp, whereby all soldered joints formedin its construction are located above the upper surface of the .oil in the lamp, and whereby said j'0ints' are protected from accidental fracture, and whereby'the safety-tube .is cheaply and securely retained'inits proper position. V

.The' secoi ul part-of my invention relates to the manner of attaching the lamp to' the stand or socket, and for'hol'ding the adjustable tube or rod at the desired clevationJ I In'the drawing a representsthe body of the lamp. It is made in one piece up-to the joint 11. I The peg g or part which goes into the socket may be'atta'ch'ed to the bottom of the bp'dy in any convenient'manner, except that no' connecting-joints shouldcommuuicate with the interior of said body.

There is a swell or enlargement of the body at b,

or just .below thejoint b, so made that, should the lamp fall over, the swell: would receive the blow hi. such a manner as to protect the joint from fracture.

c is a recess in the bottom of the body, in. which rests the lower end of the safety-tube f.

d is'the upper portionof the lamp-body, and also forms the collar 6, into which may be screwed any of the burners in common use.

The interior of said collar, being of usual form, fits loosely into the upper end of the safety-tube f, holding it-in' a vertical position.

, The object of the safety-tube f is to prevent fire from communicating with any gases which may, by

the use of inferior oils, be held in the body of thelamp- There may be holes made in the lower end of the safety-tube, for 'the passage of oil into the lamp,

The peg 9 may be of-the. usual form, so as to fit the stand'sockets in common use. 1

7:- is'the socket for holding the lamp. It 'is cut open, andthe upper'edge turned in, as shown in fig. 3, and a screw-thread is out upon it to fit the nut j.

This nut, when turned up, closes the openings t t, and causes the socket to. clamp tightly around the i: i s a tube or rod attached to the bottom of the socket h,.and extends down into'the stand Z.

The upper end of this standis tubular, (see m,figs. 1 and 4,) and the tube is cut open at the top, as shown, and a'thre'ad is cut-upon the outside, to fit the out n.

The upper end of this but is made slightly conical, so that, when turned down, it contracts the openings 010, closing the top of the tube m,,ar ound the rod or tube 10, holding it firmly at any desired elevation.

The joint I) is soldered, and it will'be seen that this is the only joint which communicates with the interior of the body of the'lamp, and thellampshould never be filled with oil above this joint.

' I claim as my invention- 1. A lamp-body, constructedsubstautially as shown and described, and. having a safety-tube, whose lower end rests in the recess .0, while the upper endfits around the collar 0, all substantially asand for-the purpose specified. v

2. The socket h, the nut j and peg g, constructed and arranged substantially as and for the purpose described.

3. A lamp-stand, made adjustable by means of the tube or 'rod lo, the tube at, and nut 11 the wholeb'eing constructed, arranged, and operated substantially as shown and described, and for the purpose set forth.

Norwich, January 1, 1870.

JIM B; FULLER. Witnesses:

E. A. DAVIS, A. S. ELKms. 

